基于Salisbury屏幕的UHF雷達頻譜搬移

廖希; 王洋; 陳前斌; 邵羽; 葉志紅

doi:10.11999/JEIT170833

基于Salisbury屏幕的UHF雷達頻譜搬移

doi: 10.11999/JEIT170833

基金項目:

國家自然科學基金(61701061)，重慶市基礎科學與前沿技術(shù)研究專項資金(CSTC2017JCYJA0817)，重慶郵電大學博士啟動基金(A2016-110)

計量
- 文章訪問數(shù): 1550
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- 被引次數(shù): 0
出版歷程
- 收稿日期: 2017-08-30
- 修回日期: 2018-01-08
- 刊出日期: 2018-06-19

Spectrum Shifting for UHF Radar Based on Salisbury Screen

Funds:

The National Natural Science Foundation of China (61701061), The Chongqing Research Program of Basic Research and Frontier Technology (CSTC2017JCYJA0817), The Doctor Start-up Funding of Chongqing University of Posts and Telecommunications (A2016-110)

摘要

摘要: 為了減縮雷達反射截面(RCS)，提高工作帶寬，該文基于時控反射面提出一種新型Salisbury屏幕，研究UHF雷達的頻譜搬移。首先利用電磁特性的可控性，設計一種由可調(diào)電阻層、介質(zhì)層和金屬接地層構(gòu)成的反射調(diào)制板，然后構(gòu)建動態(tài)二相傳輸線等效電路，并且在周期性頻率選擇表面(FSS)加載一層電感。理論推導和仿真驗證表明該屏幕能對大帶寬多方向、不同極化的UHF雷達來波信號進行頻譜搬移，減縮RCS，降低遠距離移動目標的檢測概率。
- 雷達散射截面 /
- 電磁超材料 /
- 頻率選擇表面 /
- 頻譜搬移
Abstract: To reduce Radar Cross-Section (RCS), improve operation bandwidth, this paper proposes an innovative Salisbury screen based on time-controlled surface and researches the frequency shifting of UHF radar signal. First, a reflective modulation board which is composed of adjustable impedance sheet, dielectric spacer and grounded slab is presented by using the controllability of electromagnetic properties. Second, the equivalent circuit of dynamic two-phase transmission line is established, and an inductance layer is loaded on a periodic Frequency Selective Surface (FSS). Theoretical derivation and simulation results show that Salisbury screen can realize the spectrum shifting for UHF radar signal with large bandwidth, multi-directional, as well as different polarizations. Moreover, this screen can reduce RCS and detection probability of the long distance moving target.
- Radar Cross-Section (RCS) /
- Electromagnetic metamaterials /
- Frequency Selective Surface (FSS) /
- Spectrum shifting

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參考文獻(20)

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